Part 6

Corriston watched him sink to the floor and straighten out. Forewarned as he was, he was still appalled by the almost instant, shocking change in the man's expression. For the second time the guard's features began to come apart. The entire upper portion of his face seemed to sink inward and broaden out, and the flowing began, the incredible refusal of his forehead and nose to remain in close proximity to his mouth.

One eye closed completely; the other remained open in a wide and almost pupilless stare. The chin receded and the lips became a puckered gray orifice that looked like some monstrous fungus growth sprouting from the middle of a gargoyle face. The individual features became paler and paler as they spread, and suddenly there seemed to be no color left in the face at all. It had turned completely waxen.

It was a horrifying thing to watch.

Corriston knelt, opened the man's shirt and stared intently at the exposed throat, something he had not done the first time in the cafeteria. The first time he had simply knelt and searched under the shirt with his hand for a heartbeat which had surprised him by its steadiness. He was quite sure now that the heart was beating firmly and steadily.

Even the peculiar appearance of the throat did not alarm him. But it most certainly did interest him. Far down on the Security Guard's throat, just above his breastbone, were a row of small hooks partly embedded in his flesh. The hooks were very tiny indeed, and their brightness was obscured by a thin film of sweat. Corriston removed the moisture with a quick flick of his thumb and continued to stare, as if he could not quite believe his eyes.

Finally he wedged his fingers under the base of the mask, and ripped it from the guard's face.

Under the mask, the face had a perfectly natural look. The features were relaxed and vacuous, but there was no flowing, no unnatural distortion at all. And it was quite a different face--the face of a man who had worn a disguise and was now so completely a stranger to Corriston that he might just as well have been any one of the Station's thirty-seven Security Guards.

Corriston could see where the hook attachments had gone into the flesh in at least thirty places on the man's face: on his brow, his cheekbones, on both sides of his face clear down to the base of his neck. The tiny punctures made by the hooks were faintly rimmed with blood, perhaps because Corriston had torn the mask away too abruptly. Undoubtedly the skin had been anaesthetized, the hooks inserted skillfully by someone familiar with just what should be done to prevent scarring.

He hoped that the guard would not carry tiny scars on his face for the rest of his natural life. He arose and examined the mask. He had a complete false face.

The thing was ingenious beyond belief. It was no mere Halloween assemblage of papier-maché flimflammery, but an elaborate and flexible mask of very thin plastic, or possibly metal. A prosthetic mask--if one could use that term in connection with a mask. It was certainly more complex in structure than any prosthetic leg or arm he had ever seen on a handicapped man, or would ever be likely to see.

He had a pretty good idea as to how it worked. A general idea. Apparently when the hooks were attached to the muscular structure of the human face underneath, every aspect of the wearer's face would be instantly controlled and altered to conform to the configuration of the false face. In that sense the mask could be said to actually mold itself to the wearer's face and transform it into a completely new and different face.

And yet, in some subtle way, the emotions felt by the owner of the real face would be conveyed to the mask, so that it would express with different features very much the same kinds of emotion.

Ingenious was scarcely the word for it. It was a miracle of technological science, almost beyond belief. But he could not doubt the reality of what he saw, for he held the evidence in his hand. No hallucination could possibly be _that_ real.

The way the mask's surface coloration could change when the wearer's emotions changed was perhaps the most amazing miracle of all. He had seen the guard's color come and go, had watched him redden with anger and then grow pale.

It could only mean that there was some mechanically symbiotic, emotion-sensitive electronic coating or skin surface, or series of tubes on the inner surface of the mask, which could simulate actual blood flow much like a network of tiny heat regulators. This network would be so responsive to the slightest change in body temperature that the mask would alter its color the instant the wearer experienced fright or grew uncontrollably angry. What made it seem logical and even likely was the fact that caloric changes do occur in just such a fashion in the human body with every shift from anger to grief or from pain to shock.

There was nothing simple about the inner surface of the mask. It was a maze of complicated gadgetry concentrated in less than eight inches of space, perhaps thirty or forty separate mechanisms in all, some as tiny as the head of a pin, and others about one inch in width.

When the wearer became unconscious, the mask seemingly lost its integrity. The gadgets either stopped functioning or ceased to function properly and the false face became a dissolving, hideous caricature; that bore little or no resemblance to the human countenance in repose, or even to the human countenance convulsed with sudden shock.

How incredibly blind he had been in failing to suspect the existence of a mask when the guard's face had grown unnatural and ghastly in the cafeteria. He had taken it for granted that it was the man himself who had changed.

Fortunately he was spared now from making the same mistake twice, and he took full advantage of the fact. He knelt again and began the by no means easy task of removing the uniform. He had to lift him up and turn him over twice and each time the man groaned and stirred a little. He seemed on the verge of coming to, but Corriston shut his mind to the possibility until the last of the man's garments had been tossed in a pile on the floor.

He quickly took off his own uniform then, and carefully and methodically arrayed himself as a guard, taking care to leave the coat unbuttoned at the throat and even going so far as to draw on the heavy woolen socks and attach to his wrist the guard's metal identification disk.

An audacious thought occurred to him, but he dismissed it at once. He could not attach the mask to his own face. It would have required the administrations of an expert, or, at the very least, someone familiar with the thing who knew exactly how it was supposed to be hooked into place. He had no way of knowing and he recoiled instinctively from the thought of hooks, however tiny, marring the skin on his face.

No, he'd have to get along without the mask. No one on the lower levels knew him by sight, with the one ugly exception of a killer he'd never seen clearly enough to recognize in return. And in the guard's uniform he might even succeed in deceiving the killer if he moved quickly enough to give the man only a brief glimpse of him as he crossed the wide-view promenade.

10

Corriston stared down at the still unconscious guard, lying stretched out unclothed on the floor of the cell, then he turned, patting the guard's gun which now nestled in its transferred holster on his angular, bony hip.

Well, there were perhaps even worse ways of ending up, and it was certainly a destiny almost universally shared.

He walked out through the open door of the cell without a backward glance.

He had changed his plans completely now. The complicated structure of the mask between his hands had so completely reassured him as to his complete sanity, that he was no longer under a compulsion to return to the Selector Compartment for additional proof.

All of the pieces were coming together and melting into a pattern that remained obscure only because there was still so much about it that he did not understand. He knew there was a killer loose on the Station, the same one who had been loose on the ship that had taken him to the Station. He knew about a poisoned barb that had killed one man and had barely missed killing Corriston himself.

Dismiss the killer for the moment. There was Helen Ramsey, the wealthiest girl on Earth. Think about Ramsey himself and what his wealth had done to Mars. Think about the colonists on Mars, men who had endured unimaginable hardships and privation to stake out uranium claims which Ramsey did not want them to have. Think about the freighter that had gone out of control.

Think about Clement. Think very _hard_ about Clement. The tragedy had shaken him, had given him the look of a very guilty man. He had not wanted it to happen. He had been alarmed, appalled. Yes, think about Clement--that very secretive man.

The killer? You can't get rid of him, can you? He keeps coming back into your mind. The killer had not tried to spare Helen Ramsey. He had killed her bodyguard and ripped a mask from her face. No attempt at protection there. But Clement could not have known about that. He had evidently been searching for Helen Ramsey himself. The news that she had been found had startled him, had given him a visible jolt.

Corriston did not think that the pattern would dissolve. A few of its features were becoming too clear now, the implications too inescapable. There was something going on that was ugly at the core of it, and the coming of the killer had simply brought it out into the open. Not too much into the open as yet perhaps, but the handwriting on the wall had at least become almost readable. Perhaps the accident to the freighter had also helped to bring it into the open. In some obscure way everything seemed to dovetail: Ramsey; the situation on Mars; Clement and the freighter; a twice disappearing Helen Ramsey; and an accusation of space-shock which was completely false and unjustified. Each seemed to hover just above the center of a very definite pattern.

And so did the masks! The masks in particular. Think, think hard about the masks and what the very existence of such masks on the Station implied.

The masks could only have been designed to cover the darkest deceit, to cover the most terrifying treachery.

How many officers and enlisted men on the Station were wearing masks? How many? And why? Was _every_ officer on the Station wearing one? If the masks were thought necessary, if their employment had been made mandatory, there could be only one explanation.

Every officer and every enlisted man was masquerading. The Station was officered and manned by--a word he'd never liked from a dictionary of obsolete American slang came unbidden into his mind--_Phonies!_

The thought staggered him. For a moment he rejected it as inconceivable, outside the bounds of reason. But it remained on the perimeter of his consciousness and would not be dislodged. It came back and set itself down where its dominance over his mind could not be contested.

What else _could_ it mean? Masks have only one purpose: to enable the wearer to avoid being recognized.

Quite obviously the phony officers could be wearing masks for only one reason: to conceal their real identities while they manned the Stations, carrying on the tasks of the men they had displaced.

Carrying on the tasks of the rightful officers, but with a difference. And that difference would almost certainly be criminal activity on a wide and daring scale.

The only question remaining to be answered was how high did that

## activity ascend? Did it ascend to the very top, to Commander Clement

himself?

Fortunately, the violence of space is a controlled violence, and determined men can slip through it with tools and building materials. They can base themselves on zero-gravity construction rafts and take refuge in pressurized crevices, go floating along steel girders five hundred feet in length until there has been assembled the greatest of all miracles--a manned Space Station a thousand feet in diameter encircling Earth at a distance of fifteen hundred miles.

The Station had not been built in space, it had been built on Earth section by section. However, the final task of putting it together had been left to the floating men in their fishbowl helmets, the suicide brigade with their incredible vacuum equipment and remote control welding arms.

Fifty-seven sections had been built on Earth over a period of five years, thirty-four in the Eastern United States, the rest in scattered localities from Chicago to the Gold Coast. They had all been sent up by step rockets into the same narrow orbit around Earth. They were fifty-seven sections "crash landing" in a total vacuum, weightless and yet with sufficient mass and inertia to keep them in close proximity until the great task could get under way.

The assembled Station was cone-shaped, and it had been a colossal undertaking to keep it from developing stress defects over a third of its bulk during the early constructional stages. Under the guidance of experts, the problem had been solved, but at a tragic price.

Assembling the Station had cost the lives of fifty-three men, for there is no easy way to bring together, join, seal and make safe tons of metal and plastic, intricate machinery and equipment, plus a thousand-and-one small, incidental contrivances fifteen hundred miles above the emergency-alert systems and hospital facilities of Earth.

Some of the men who had lost their lives had been blown out of transport rocket tubes by mistake. Some had missed their footing too close to a welding operation that had been halted too late. Some had floated into capsules full of nitric oxygen gas under high pressure and had failed to veer away in time. Still others had tugged too strenuously at heavy girders and the slow, but crushing inertia of an enormous, backward-swinging beam in free fall had ripped their space suits asunder and fractured their spines.

There were five thousand ways of dying in space. But the sacrifice, the terror, the tragic toll seemed immeasurably remote now, for the roar of the incoming and outgoing ships made the Station a gigantic reality so completely in the present that it seemed to have no past.

Spinning always on its axis, substituting centrifugal force for the gravity tug of Earth, the Station was a complete world, a self-contained macrocosm so immense that the magnetic-shod mechanics who inspected it in relays, the passenger-carrying shuttle rockets from Earth that came and went, and even the thousand-foot ships that berthed for re-fueling and clearance seemed hardly to encroach at all on its vast central bulk.

And yet, it was something quite apart from the Station's bigness which came under worldwide scrutiny when the freighter crashed and was splintered into fragments, channeling a fiery crater in the earth and causing the most disastrous accidental death toll in United States history.

The news was flashed to the four corners of the earth, and almost simultaneously a flight of United States military jets took off from the Lake Superior airport to explore the wreckage.

The first message from the flight commander, Lieutenant Colonel Hackett, came five hours later. It was tense, grim and it minced no words. "Wreckage radioactive. Main cargo uranium in a rough ore state. Explosion and subsequent intense radioactivity apparently caused by an auxiliary cargo of highly unstable uranium isotopes. If the freighter had berthed at the Station the dangerous character of its cargo could not have escaped detection. We have every reason to believe that it _intended_ to berth at the Station. Its signals to the Station, before some undeterminable shipboard accident sent it out of control, confirm this. We must therefore assume complicity of a double nature: by the freighter's commanding officer, Captain James Summerfield, and by someone in a position of high command on the Station."

After that, there was no silencing the slow, relentless events on Earth.

A week after the tragedy, a U. S. Marine corporal stationed at Port Forrestal, Wisconsin, put through a late afternoon phono-view call to his wife. His face on the screen was haggard with strain, and he seemed not to want to meet his wife's gaze.

"We've been ordered out into space," he said.

"You mean they're sending you out to take over the Station?"

"They're sending out five thousand United States Marines," the corporal said. "We all knew it was coming. We expected it when that Governmental Investigating Committee was turned back."

"But it doesn't make sense. I can't understand it. Why should the Commander of the Station refuse to permit a Governmental Investigating Committee to land?"

"We don't know. He must have something to conceal, and you can be pretty sure it's an ugly something. When that freighter disaster got into every daily press conference of the high brass I knew this was coming. I felt it in my bones."

"But what will happen if the Commander refuses to let even the Marines land? What will happen then?"

"We may have to open fire on the Station," the corporal said. "If the Station is in criminal hands we'll have no alternative."

"You talk as if you were in command."

"I guess every soldier talks like that when his life is in jeopardy. But I'm glad I'm not a five-star general. If I had to make a decision like that--"

* * * * *

But it wasn't a general who made the crucial decision. It was Admiral John Hayes, Commander of the Eighth Spatial Naval Division, acting on behalf of fifty-seven nations.

He stood in the bridge room of a United States naval cruiser of massive tonnage, staring out through a wide-view observation port at the Station's glimmering immensity. The cruiser and the Station were moving at almost the same speed, fifteen thousand miles an hour. But now the cruiser was moving just a little faster than the Station, and Admiral Hayes was growing impatient.

Maneuvering into an orbital position almost directly abreast of the Station had been difficult. Commander Hayes' nerves were badly frayed; and he was not a man who could endure too much frustration. He had signaled the Station twice and received no reply. During that time, both the Station and the Cruiser had completely encircled the Earth at an interval of just a little under two hours.

He turned suddenly from the viewport, his lips set in tight lines. He stared for an instant in silence at the young officer at his side, his mind groping for an argument which would completely justify what he had already decided he must do.

But Lieutenant Commander Kenneth Archer spoke first, saying quietly: "You have no choice, sir."

Hayes' features relaxed a little. It was good to know that he had support from a man whose judgment he respected. For an instant the awful aloneness which went with supreme command weighed less heavily upon him.

"It's absolute defiance, open rebellion," Hayes said. "I'm forced to assume that the Station is in criminal hands. We'll never know, probably, just _what_ happened on board that freighter. But we do know that accidents occur. For every thirty ships that berth securely, one meets with some kind of navigational mishap. The damage isn't always irreparable. More often than not, in fact, it's quite minor. Usually it means only a delay in berthing, a navigational shift, a circling back for another try. But apparently that freighter really _had_ it. So it gave the show away. Commander Clement must be in league, hand in glove, with whoever is interested in smuggling unauthorized uranium shipments through to Earth for his own personal profit. And to hasten his immediate profit that someone apparently found it to his advantage to trigger a little of the shipment into highly fissionable material on Mars."

"You know as well as I do who the someone is, sir," Archer said.

"I guess we both know. But right now my only concern is with the Station. If they ignore my third order to stand by for boarding I'll have to open fire. The Station's stolen property just as long as it remains in criminal hands. You can't get a desperate criminal to surrender your property unless you convince him his own life is in danger. I've got to try my best to convince Commander Clement I mean business without destroying the Station."

"You'll damage it to some extent, sir. How bad do you think it will be?"

"I don't know. I don't intend to launch an atomic warhead. But I can't stop short of that if he stays stubborn. I've no way of knowing what his breaking point will be. But I do know that if he keeps control of the Station he'll be in a position to wipe out New York or London."

"But you'll make your intentions unmistakably clear before you open fire, sir?"

"Yes," Hayes said, wearily. "Yes ... of course I will."

11

Corriston took a deep breath and let it out slowly. So far luck had favored him. Now he felt as though he were walking through a deadly jungle where all the animals had suddenly turned friendly. The teeth they bared at him were smiling. The grins were their masks. But the commander didn't pretend at all ... whoever the commander really was!

And then that single question began to gnaw at Corriston like some rat feeding on his flesh: Where was the real Clement now? Was he alive? Was he accessible? Or was he dead?

Corriston's mental processes were now governed by the most evanescent of impressions: the depth of the shadows on both sides of the corridor; his own shadow lengthening before him; the drone of machinery deep within the Station; the muffled beating of his own heart. Suddenly he was at the end of the corridor and approaching the main control room, his face as grim as death.

Violence he had determined upon, but it would be a very brief, a very effective kind of violence. It takes only a second to rip a mask from a man's face.

Something was happening just outside the main control room door. The three executive officers guarding the door had moved eight or ten paces down the corridor, and the door itself was standing ajar. The executive officers had their backs turned to Corriston and were making no attempt to conceal their agitation. They were very pale, at least, one of them was. Two had their backs completely turned, but Corriston caught a brief glimpse of the third man's profile, and it seemed completely drained of color, as if the mask had stopped mirroring emotion artificially and had allowed the wearer's actual pallor to seep through.

Corriston glided quickly to the door, passed through it and shut it very quietly behind him.

The commander had his back turned too. He was standing before the viewport, staring out into space.

But the commander did seem dazed, did seem stunned. Corriston could tell by his posture, by the way he held his shoulders, by the utter rigidity of his neck.